As shown in the oogarooms structure diagram here, the Oogarooms are a ring that is set inside of a larger ring known as oogan or eonian reality. This ring is where the dream colossal was sent, and it it where you go when you dream in oogan reality. If you escape from your dream by being lucid, the default state of this zone is an empty void with a greenish-gold hue. You can explore this area, and if you are close enough to the edge of the oogarooms or the oogan reality, you can enter it from there. This will cause your sleeping body to be teleported to the new location and you to wake up.
